diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch')
-rw-r--r-- | target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch b/target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch deleted file mode 100644 index 68a2d4d88f..0000000000 --- a/target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch +++ /dev/null @@ -1,119 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Subject: kernel: add a config option for keeping the kallsyms table uncompressed, saving ~9kb kernel size after lzma on ar71xx - -[john@phrozen.org: added to my upstream queue 30.12.2016] -lede-commit: e0e3509b5ce2ccf93d4d67ea907613f5f7ec2eed -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - init/Kconfig | 11 +++++++++++ - kernel/kallsyms.c | 8 ++++++++ - scripts/kallsyms.c | 12 ++++++++++++ - scripts/link-vmlinux.sh | 4 ++++ - 4 files changed, 35 insertions(+) - ---- a/init/Kconfig -+++ b/init/Kconfig -@@ -1280,6 +1280,17 @@ config SYSCTL_ARCH_UNALIGN_ALLOW - the unaligned access emulation. - see arch/parisc/kernel/unaligned.c for reference - -+config KALLSYMS_UNCOMPRESSED -+ bool "Keep kallsyms uncompressed" -+ depends on KALLSYMS -+ help -+ Normally kallsyms contains compressed symbols (using a token table), -+ reducing the uncompressed kernel image size. Keeping the symbol table -+ uncompressed significantly improves the size of this part in compressed -+ kernel images. -+ -+ Say N unless you need compressed kernel images to be small. -+ - config HAVE_PCSPKR_PLATFORM - bool - ---- a/kernel/kallsyms.c -+++ b/kernel/kallsyms.c -@@ -75,6 +75,11 @@ static unsigned int kallsyms_expand_symb - * For every byte on the compressed symbol data, copy the table - * entry for that byte. - */ -+#ifdef CONFIG_KALLSYMS_UNCOMPRESSED -+ memcpy(result, data + 1, len - 1); -+ result += len - 1; -+ len = 0; -+#endif - while (len) { - tptr = &kallsyms_token_table[kallsyms_token_index[*data]]; - data++; -@@ -107,6 +112,9 @@ tail: - */ - static char kallsyms_get_symbol_type(unsigned int off) - { -+#ifdef CONFIG_KALLSYMS_UNCOMPRESSED -+ return kallsyms_names[off + 1]; -+#endif - /* - * Get just the first code, look it up in the token table, - * and return the first char from this token. ---- a/scripts/kallsyms.c -+++ b/scripts/kallsyms.c -@@ -59,6 +59,7 @@ static struct addr_range percpu_range = - static struct sym_entry *table; - static unsigned int table_size, table_cnt; - static int all_symbols = 0; -+static int uncompressed = 0; - static int absolute_percpu = 0; - static int base_relative = 0; - -@@ -440,6 +441,9 @@ static void write_src(void) - - free(markers); - -+ if (uncompressed) -+ return; -+ - output_label("kallsyms_token_table"); - off = 0; - for (i = 0; i < 256; i++) { -@@ -500,6 +504,9 @@ static void *find_token(unsigned char *s - { - int i; - -+ if (uncompressed) -+ return NULL; -+ - for (i = 0; i < len - 1; i++) { - if (str[i] == token[0] && str[i+1] == token[1]) - return &str[i]; -@@ -572,6 +579,9 @@ static void optimize_result(void) - { - int i, best; - -+ if (uncompressed) -+ return; -+ - /* using the '\0' symbol last allows compress_symbols to use standard - * fast string functions */ - for (i = 255; i >= 0; i--) { -@@ -751,6 +761,8 @@ int main(int argc, char **argv) - absolute_percpu = 1; - else if (strcmp(argv[i], "--base-relative") == 0) - base_relative = 1; -+ else if (strcmp(argv[i], "--uncompressed") == 0) -+ uncompressed = 1; - else - usage(); - } ---- a/scripts/link-vmlinux.sh -+++ b/scripts/link-vmlinux.sh -@@ -160,6 +160,10 @@ kallsyms() - kallsymopt="${kallsymopt} --base-relative" - fi - -+ if [ -n "${CONFIG_KALLSYMS_UNCOMPRESSED}" ]; then -+ kallsymopt="${kallsymopt} --uncompressed" -+ fi -+ - local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \ - ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}" - |